The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A231191 Number of (n+1)X(n+1) 0..2 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order 0
 9, 1413, 2001156, 22370911245, 2000159147569783, 1426979668861283669236, 8127101616666745550335206754 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A231199 LINKS EXAMPLE Some solutions for n=2 ..0..1..2....0..0..1....0..1..2....0..0..1....0..1..1....0..1..2....0..1..2 ..0..0..1....2..1..0....0..0..2....1..1..0....2..0..0....1..0..1....0..2..0 ..2..0..2....0..2..1....1..0..2....0..2..1....1..1..0....1..0..0....0..2..1 CROSSREFS Sequence in context: A213448 A120347 A230172 * A217267 A300594 A203649 Adjacent sequences:  A231188 A231189 A231190 * A231192 A231193 A231194 KEYWORD nonn AUTHOR R. H. Hardin, Nov 05 2013 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 16 14:36 EDT 2021. Contains 345057 sequences. (Running on oeis4.)